$(function() {
//导航滑动效果
	$("#navigation-postion>span").on("mouseover", function() {
		var position = $(this)
			.position();
		var width = $(this)
			.width();

		$(".slideline")
			.css({
				opacity: 1,
				left: +position.left,
				width: width
			})
	});
	$("#navigation-postion>span").on("mouseout", function() {
		$(".slideline")
			.css({
				opacity: 0
			})
	});
})